atp870u: Remove ugly gotos #3 (832e9ac6) · Commits · 戴 / test

drivers/scsi/atp870u.c

+6 −12

Original line number	Diff line number	Diff line
		@@ -880,34 +880,28 @@ static unsigned char fun_scam(struct atp_unit dev, unsigned short int val)
		unsigned char j;

		outw(*val, dev->ioport[0] + 0x1c);
		FUN_D7:
		for (i = 0; i < 10; i++) { /* stable >= bus settle delay(400 ns) */
		k = inw(dev->ioport[0] + 0x1c);
		j = (unsigned char) (k >> 8);
		if ((k & 0x8000) != 0) { /* DB7 all release? */
		goto FUN_D7;
		}
		if ((k & 0x8000) != 0) /* DB7 all release? */
		i = 0;
		}
		val \|= 0x4000; / assert DB6 */
		outw(*val, dev->ioport[0] + 0x1c);
		val &= 0xdfff; / assert DB5 */
		outw(*val, dev->ioport[0] + 0x1c);
		FUN_D5:
		for (i = 0; i < 10; i++) { /* stable >= bus settle delay(400 ns) */
		if ((inw(dev->ioport[0] + 0x1c) & 0x2000) != 0) { /* DB5 all release? */
		goto FUN_D5;
		}
		if ((inw(dev->ioport[0] + 0x1c) & 0x2000) != 0) /* DB5 all release? */
		i = 0;
		}
		val \|= 0x8000; / no DB4-0, assert DB7 */
		*val &= 0xe0ff;
		outw(*val, dev->ioport[0] + 0x1c);
		val &= 0xbfff; / release DB6 */
		outw(*val, dev->ioport[0] + 0x1c);
		FUN_D6:
		for (i = 0; i < 10; i++) { /* stable >= bus settle delay(400 ns) */
		if ((inw(dev->ioport[0] + 0x1c) & 0x4000) != 0) { /* DB6 all release? */
		goto FUN_D6;
		}
		if ((inw(dev->ioport[0] + 0x1c) & 0x4000) != 0) /* DB6 all release? */
		i = 0;
		}

		return j;